Plants are very important living things. Life could not go on if there were no plants. This is   1  plants can make food from air, water and sunlight. Animals and men   2 make food from air, water and sunlight. Animals get their food by eating plants and animals   
 3   Therefore(因此), animals and  men need plants in order to   4  This is the reason(原因) why we find that there are so many plants around us.
If you look carefully at the plants around you   5   find that there are many kinds of plants. Some plants are large   6   others are small. Most plants are green..
Some plants have many small leaves. Others have only   7  large leaves. There are many kinds of leaves. Leaves are of  8    shapes(形状) and colors.
Leaves are also different in other ways. Some leaves have short leaf stalks(叶茎)while others have long leaf stalks. Still others have  9   stalks at all. The edges(边)of leaves are also different. Some leaves have smooth(光滑的)edges. Some have wave(波状的) edges    10   the teeth of saw(锯).

阅读下面短文，将文中划线句子译成中文。
　　Some kids in boarding school often like to talk with their roommates. 【小题1】They won’t stop talking until someone comes to stop them. This is the reason why many of them are sleepy in class the next day. Lack of (缺乏) sleep is bad for their health. Growth hormones (生长激素) are very important if one is to grow taller. 【小题2】The body makes the most hormones between 10 p.m. and 2 a.m. While you are asleep. 【小题3】This means that if you don’t get to sleep at the time, you won’t grow taller.

Plants are very important living things. Life could not go on if there were no plants. This is   1  plants can make food from air, water and sunlight. Animals and men   2 make food from air, water and sunlight. Animals get their food by eating plants and animals   

 3   Therefore(因此), animals and  men need plants in order to   4  This is the reason(原因) why we find that there are so many plants around us.

If you look carefully at the plants around you   5   find that there are many kinds of plants. Some plants are large   6   others are small. Most plants are green..

Some plants have many small leaves. Others have only   7  large leaves. There are many kinds of leaves. Leaves are of  8    shapes(形状) and colors.

Leaves are also different in other ways. Some leaves have short leaf stalks(叶茎)while others have long leaf stalks. Still others have  9   stalks at all. The edges(边)of leaves are also different. Some leaves have smooth(光滑的)edges. Some have wave(波状的) edges    10   the teeth of saw(锯).

8.A. much          B. different         C. same            D the same

This is the reason ______ I was late for school yesterday.

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　　A. for   B. on   C. why   D. of